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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need some rifle twist experts to help me out...
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<blockquote data-quote="Michael Eichele" data-source="post: 901355" data-attributes="member: 1007"><p>I maybe wrong but I believe what causes bullets to tumble is the destabilizing effects of the transonic zone. I don't think loosing velocity in and of itself causes tumbling other than the loss causing them to go subsonic. Some combinations can survive the transonic wall but most combos cannot. It's very difficult to calculate or predict what will survive and continue to fly straight. While supersonic though, it is mathematically provable that stability can and does increase over time. All bets are off when they hit the transonic wall.</p><p></p><p>If you ever watch slow motion videos of fighter jets coming down from supersonic speeds, they get knocked around a bit when they cross that threshold.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 901355, member: 1007"] I maybe wrong but I believe what causes bullets to tumble is the destabilizing effects of the transonic zone. I don't think loosing velocity in and of itself causes tumbling other than the loss causing them to go subsonic. Some combinations can survive the transonic wall but most combos cannot. It's very difficult to calculate or predict what will survive and continue to fly straight. While supersonic though, it is mathematically provable that stability can and does increase over time. All bets are off when they hit the transonic wall. If you ever watch slow motion videos of fighter jets coming down from supersonic speeds, they get knocked around a bit when they cross that threshold. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Need some rifle twist experts to help me out...
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